Osteoarthritis is a painful condition that unfortunately is common in cats but is much more frequently diagnosed in dogs. It is defined as the slowly progressive, non-inflammatory, irreversible deterioration of the articular cartilage of synovial joints.Osteoarthritis, also called degenerative joint disease, is reportedly found in roughly 90% of cats over 12 years of age. It most commonly affects large, overweight and/or extremely active animals. The clinical signs of arthritis are at first subtle and gradually